Spot exactly what changed
When two versions of a text look almost identical, finding the difference by eye is painful and unreliable. A diff compares them line by line and highlights what was added and what was removed, so a changed clause in a contract, an edited paragraph, or a tweaked config stands out immediately. It is the same idea developers rely on for code, applied to any text.
How to use it
- Paste the original text on one side and the new version on the other.
- Read the highlighted result: additions and deletions are marked clearly.
- Use it to confirm a change, or to catch one you didn't expect.
Where it is useful
- Reviewing edits to a document before accepting them.
- Comparing two configuration files to find the one line that differs.
- Checking what a collaborator actually changed in a shared draft.
Questions people ask
Does it compare whole words or characters? It works line by line and marks the parts that differ, which matches how people usually read changes.
Is anything uploaded? No — both texts are compared locally in your browser.